let's pretend that progress is a thing that could possibly happen in a series like this.
I 'member when I was last tricked. the festival date arc seemed like progress. then I had to put up with the cow-tits NTR arc. there will be no progress. you've broken my innocence and trust nanashi.
@jkubed in a story like this, character progression = plot progression and in the latest chapters, senpai has actually developed quite a lot, being more honest with himself and even talking to people of his own accord.